Microstructures and mechanical properties of ZrC reinforced (Zr-Ti)-Al-Ni-Cu glassy composites by an in situ reaction

The microstructures and mechanical properties of ZrC reinforced (Zr-Ti)-Al-Ni-Cu glassy composites by an In Situ reaction were studied so as to enhance their compression strength, hardness, and plasticity. A pre-alloy ingot of Zr₅₅Al₁₀Ni₅Cu₃₀ was prepared by arc-melting pure metals, in different volume fractions was re-melted in the arc-melting furnace. The phases in the injection-cast samples were identified by an X-ray diffraction (XRD), and the microstructures were examined using both a laser confocal scanning microscope (Olympus LEXT) and a scanning electron microscope (SEM). The ZrC particles considerably enhance both the fracture strength and plasticity of the BMG matrix, with an increased compressive fracture strength, hardness, and plasticity of the stated composites.